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objects.cpp Example File
activeqt/hierarchy/objects.cpp

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**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** Licensees holding valid Qt Preview licenses may use this file in
** accordance with the Qt Preview License Agreement provided with the
** Software.
**
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** information about Qt Commercial License Agreements.
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** not clear to you.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/

#include "objects.h"
#include <QLayout>
#include <QPainter>

/* Implementation of QParentWidget */
QParentWidget::QParentWidget(QWidget *parent)
: QWidget(parent)
{
    vbox = new QVBoxLayout(this);
}

void QParentWidget::createSubWidget(const QString &name)
{
    QSubWidget *sw = new QSubWidget(this, name);
    vbox->addWidget(sw);
    sw->setLabel(name);
    sw->show();
}

QSubWidget *QParentWidget::subWidget(const QString &name)
{
    return qFindChild<QSubWidget*>(this, name);
}

QSize QParentWidget::sizeHint() const
{
    return QWidget::sizeHint().expandedTo(QSize(100, 100));
}

/* Implementation of QSubWidget */
QSubWidget::QSubWidget(QWidget *parent, const QString &name)
: QWidget(parent)
{
    setObjectName(name);
}

void QSubWidget::setLabel(const QString &text)
{
    lbl = text;
    setObjectName(text);
    update();
}

QString QSubWidget::label() const
{
    return lbl;
}

QSize QSubWidget::sizeHint() const
{
    QFontMetrics fm(font());
    return QSize(fm.width(lbl), fm.height());
}

void QSubWidget::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    painter.setPen(palette().text().color());
    painter.drawText(rect(), Qt::AlignCenter, lbl);
}


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Qt 4.2.0-rc1